/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/MoviePipeline.h
void AddFrameToOutputMetadata ( const [FString](API\Runtime\Core\Containers\FString) & ClipName, const [FString](API\Runtime\Core\Containers\FString) & ImageSequenceFileName, const [FMoviePipelineFrameOutputState](API\Plugins\MovieRenderPipelineCore\FMoviePipelineFrameOutputState) & FrameOutputState, const [FString](API\Runtime\Core\Containers\FString) & Extension, const bool bHasAlpha )